Korriban, ancient homeworld of the Sith.Sith civilization evolved on the planet Korriban, leading barbaric and hedonistic lifestyles, using the dark side of the Force. The Sith had a natural symbiotic relationship fused with the dark side.
Two-Button Single-Breasted. The single-breasted model remains the most popular type of tuxedo jacket and its classic one-button interpretation is still the most formal. A modern variation is the two-button version based on business suit styling.
I think what Rule # 19 means is button-down collar. You can argue about how proper or informal it looks with a suit and business attire. But I have NEVER seen a tuxedo shirt â meaning a shirt with studs, or pleats, or a bib â with a button-down collar.